/Engine/Source/Editor/BlueprintGraph/Classes/EdGraphSchema_K2.h
Create menu for variable get/set nodes which allows for the replacement of variables
void GetReplaceVariableMenu ( [FToolMenuSection](API\Developer\ToolMenus\FToolMenuSection) & Section, const [UEdGraphNode](API\Runtime\Engine\EdGraph\UEdGraphNode) * InGraphNode, [UBlueprint](API\Runtime\Engine\Engine\UBlueprint) * InOwnerBlueprint, bool bInReplaceExistingVariable ) const